[英]Is it possible to sort the first column of a 2D array but keep the corresponding values the same in java
我正在用Java创建GradeBook程序,示例输出如下所示:
我想知道是否可以在保持学生成绩的同时对学生姓名进行排序:
我想要它看起来像什么
如果可能的话,请指导我如何做
使用数据结构
此结构将从第二张图像中打印出您想要的内容。
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
class Student implements Comparable<Student>{
private String name;
private int test;
private int quiz;
public Student(String name, int test, int quiz) {
this.name = name;
this.test = test;
this.quiz = quiz;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getTest() {
return test;
}
public void setTest(int test) {
this.test = test;
}
public int getQuiz() {
return quiz;
}
public void setQuiz(int quiz) {
this.quiz = quiz;
}
@Override
public int compareTo(Student o) {
return this.name.compareTo(o.name);
}
}
public class Stack {
public static void main(String[] args) {
List<Student> students = new ArrayList<>();
students.add(new Student("Willian", 90, 80));
students.add(new Student("Charles", 70, 95));
Collections.sort(students);
System.out.println("\t\t Test \tQuiz");
for (Student s : students) {
System.out.println(String.format("%s\t\t%d\t\t%d", s.getName(), s.getTest(), s.getQuiz()));
}
}
}
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